小菜蛾性成熟前期在菜株中的垂直分布

基金项目: 广东省科委科学基金

VERTICAL DISTRIBUTION OF IMMATURE STAGES OF THE DIAMONDBACK MOTH PLUTELLA XYLOSTELLA WITHIN CRUFICEROUS CROPS

摘要: 本文通过田间调查,分析了小菜蛾卵、幼虫、蛹在菜心、芥兰、西蓝花菜株中的垂直分布,结果表明,卵的平均位置在心叶以下第二片叶,幼虫在心叶,蛹的分布则较均匀,本文还分析了小菜蛾的垂直运动规律及机制,为田间抽样及化学防治提供依据。
- 小菜蛾 /
- 垂直分布
Abstract: Based on the field experiment,the description of the vertical distribution of immature staffs of the dia-mondback moth,Phtella xylosella within some cruficerous vegetables that are flowering Chinese cabbage,Chinese kale and broccoli was given.The results showed that the eggs were mainly laid on the 2nd leaf and the larvae concentrated in the growth point and the youngest leaves,while the pupae were all distributed within the plants.In the other hand,the movement behaviors of this pest within plants and its mechanism were disscussed in this paper.
- phaella xylosella /
- vertical distribution